Hi,
This seems to be fixed in 6.3.4 (Yubico's webauthn implementation is
bumped to 1.9.0)
Best regards,
Linos
On 4/29/21 12:36 PM, Linos Giannopoulos wrote:
Hey!
We are in the process of evaluating WebAuthn as our main MFA provider
and although it's been smooth when Yubikeys are used,
we ran into an issue when we attempted to use MongoDB as the backend
storage.
Although the registration works as expected, authentication seems broken:
```
2021-04-29 12:31:11,363 ERROR [com.yubico.core.WebAuthnServer] -
<Failed to update signature count for user "lgian", credential
"ByteArray(cd3b1add6896273ff0bd0271f184842ac8c48ca6c9c6234e3157e557e328a51d64e1eca4e96bb2a63cd1d8be17b26c26a980821b366115498a86afd7b4186ea7)">
java.lang.reflect.UndeclaredThrowableException: null
at com.sun.proxy.$Proxy202.updateSignatureCount(Unknown Source) ~[?:?]
at
com.yubico.core.WebAuthnServer.finishAuthentication(WebAuthnServer.java:550)
~[cas-server-webauthn-helper-1.7.1.jar:?]
at
org.apereo.cas.webauthn.web.WebAuthnController.finishAuthentication(WebAuthnController.java:113)
~[cas-server-support-webauthn-core-6.3.3.jar:6.3.3]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method) ~[?:?]
at
jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
~[?:?]
at
jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[?:?]
at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
at
org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)
~[spring-web-5.2.12.RELEASE.jar:5.2.12.RELEASE]
at
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
~[spring-web-5.2.12.RELEASE.jar:5.2.12.RELEASE]
[...]
Caused by: com.fasterxml.jackson.databind.JsonMappingException: (was
java.lang.NullPointerException) (through reference chain:
java.util.HashSet[0]->com.yubico.data.CredentialRegistration["registrationTime"])
at
com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:390)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:349)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ser.std.StdSerializer.wrapAndThrow(StdSerializer.java:316)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:778)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:178)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serializeContents(CollectionSerializer.java:145)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serialize(CollectionSerializer.java:107)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serialize(CollectionSerializer.java:25)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ser.DefaultSerializerProvider._serialize(DefaultSerializerProvider.java:480)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:319)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ObjectMapper._writeValueAndClose(ObjectMapper.java:4485)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ObjectMapper.writeValueAsString(ObjectMapper.java:3740)
~[jackson-databind-2.12.0.jar:2.12.0]
at
org.apereo.cas.webauthn.MongoDbWebAuthnCredentialRepository.update(MongoDbWebAuthnCredentialRepository.java:81)
~[cas-server-support-webauthn-mongo-6.3.3.jar:6.3.3]
at
org.apereo.cas.webauthn.storage.BaseWebAuthnCredentialRepository.updateSignatureCount(BaseWebAuthnCredentialRepository.java:89)
~[cas-server-support-webauthn-core-6.3.3.jar:6.3.3]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method) ~[?:?]
at
jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
~[?:?]
at
jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[?:?]
at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
at
org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:282)
~[spring-core-5.2.12.RELEASE.jar:5.2.12.RELEASE]
at
org.springframework.cloud.context.scope.GenericScope$LockedScopedProxyFactoryBean.invoke(GenericScope.java:499)
~[spring-cloud-context-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
~[spring-aop-5.2.12.RELEASE.jar:5.2.12.RELEASE]
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
~[spring-aop-5.2.12.RELEASE.jar:5.2.12.RELEASE]
... 120 more
Caused by: java.lang.NullPointerException
at
com.yubico.data.CredentialRegistration.getRegistrationTimestamp(CredentialRegistration.java:58)
~[cas-server-webauthn-helper-1.7.1.jar:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method) ~[?:?]
at
jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
~[?:?]
at
jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[?:?]
at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
at
com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:689)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:770)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:178)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serializeContents(CollectionSerializer.java:145)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serialize(CollectionSerializer.java:107)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serialize(CollectionSerializer.java:25)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ser.DefaultSerializerProvider._serialize(DefaultSerializerProvider.java:480)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:319)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ObjectMapper._writeValueAndClose(ObjectMapper.java:4485)
~[jackson-databind-2.12.0.jar:2.12.0]
at
com.fasterxml.jackson.databind.ObjectMapper.writeValueAsString(ObjectMapper.java:3740)
~[jackson-databind-2.12.0.jar:2.12.0]
at
org.apereo.cas.webauthn.MongoDbWebAuthnCredentialRepository.update(MongoDbWebAuthnCredentialRepository.java:81)
~[cas-server-support-webauthn-mongo-6.3.3.jar:6.3.3]
at
org.apereo.cas.webauthn.storage.BaseWebAuthnCredentialRepository.updateSignatureCount(BaseWebAuthnCredentialRepository.java:89)
~[cas-server-support-webauthn-core-6.3.3.jar:6.3.3]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method) ~[?:?]
at
jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
~[?:?]
at
jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[?:?]
at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
at
org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:282)
~[spring-core-5.2.12.RELEASE.jar:5.2.12.RELEASE]
at
org.springframework.cloud.context.scope.GenericScope$LockedScopedProxyFactoryBean.invoke(GenericScope.java:499)
~[spring-cloud-context-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
~[spring-aop-5.2.12.RELEASE.jar:5.2.12.RELEASE]
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
~[spring-aop-5.2.12.RELEASE.jar:5.2.12.RELEASE]
... 120 more
```
Also, the issue does not exist when the in-memory storage is used.
We are on version 6.3.3, but I should mention that we've worked around
an issue that the 6.3.3 has currently.
The issue seems to be fixed on the 6.3.X branch, but the WAR overlay
version is broken:
```
Could not find org.apereo.cas:cas-server-webauthn-helper:1.7.0.
```
After looking into it, `cas-server-webauthn-helper` exists under the
`org.apereo` organization (and also, the 1.7.0 does not exist anymore).
Again, this commit[0] seems to be fixing the issue. But to work around
it for our version, we did the following:
```
+ compile "org.apereo:cas-server-webauthn-helper:1.7.1"
+ compile
("org.apereo.cas:cas-server-support-webauthn:${project.'cas.version'}"){
+ exclude group: 'org.apereo.cas', module:
'cas-server-webauthn-helper'
+ }
+ compile
("org.apereo.cas:cas-server-support-webauthn-mongo:${project.'cas.version'}"){
+ exclude group: 'org.apereo.cas', module:
'cas-server-webauthn-helper'
+ }
```
[0]:
https://github.com/apereo/cas/commit/ca75765649a7383a301370f94b5ff1a6146faf8a
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